1.	An electric dipole is placed at an angle of 30° to a non-uniform electric field. The dipole will experience ?
	a torque only
	a translational force only in the direction of the field
	a translational force only in the direction normal to the direction of the field
	a torque as well as a translational force
	Answer: a torque as well as a translational force Explanation: In a non-uniform electric field, the dipole may experience both non-zero torque as well as translational force.
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2.	An electric dipole is placed at the centre of a sphere then ?
	the electric field is not zero anywhere on the sphere.
	the electric field is zero on a circle on the sphere.
	the flux of the electric field through the sphere is not zero.
	the electric field is zero at every point of the sphere.
	Answer: the electric field is zero on a circle on the sphere. Explanation: According to Gauss's law,electric flux depends only on the charge inside the sphere. As the net charge of dipole is zero, so the flux through the sphere is zero. But the electric field is the resultant effect due to all charges. So the electric field can not be zero at every point of sphere. Potential is also not zero on sphere but it is zero for a circle on sphere.
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